Paper cup



H. CAREW Aug. 28, 1934.

PAPER CUP 2 Sheets-Sheet 1 Filed Aug. 22, 1950 flz'man @raw H. CAREWPAPER CUP Aug. 28, 1934.

Filed Aug. 22, 1930 2 Sheets-Sheet 2 lift/man firew UNITED STATES PATENTOFFICE PAPER CUP Herman Carew, Easton, Pa.,' assignor to IndividualDrinking. Cup Company, 1110., Easton, Pa.,

a corporation of Pennsylvania Application August 22, 1930, Serial No.477,098

1 Claim. (Cl. 2291.5)

My invention relates to newand useful im- Fig. 2 is a side elevation ofa completed reprovements in receptacles and more particularly ceptacleor cup. to paper cups or the like intended for but a sin- Fig. 3 is anelevation at right angles to that gle use and adapted to be nested instack formadisclosed in Fig. 2. tion so that the terminal. cup may bewithdrawn Fig. 4 is a top plan.

for use. Fig. 5 is a plan of a blank from which the The principalobject'of the invention resides receptacle or cup is formed. in theprovision of a receptacle of the character Fig. 6 is a perspectiveshowing the initial fold described which is relatively simple and inexofthe blank.

10 pensive in. construction, being formed of rela Fig. 7 is. afragmental detail showing a vertively light material, and of aconstruction adapttical section through the bottom portion of the ing arelatively large number to be nested in a receptacle or cup; 'andrelatively small stack thereby facilitating their Fig. 8 is a horizontalsection on the line 8-8 use in dispensing machines and making itwunofFig. 7.

15 necessary for the attendant to frequently refill In the drawings aindicates a blank of the maor replenish the dispensers. terial,preferably paper, from which the receptacle Another object consists inproviding a recepor cup is to be formed, this blank being of a shapetacle of the character described having advanor form to provide theoppositely directed sectages of both the cylindrical and flat typespretors or keystone-shaped portions 1 and 2, a flange 20 viously used,the same being provided with a or extension 3 being formed on onelongitudinal round normally open mouth portion and a body edge of theportion 1 while a flange or extension portion which is of substantiallywedge-shape 4 is formed on the opposite longitudinal edge of taperingdownwardly to provide a flat relatively the portion 2.- In forming thereceptacle or cup wide bottom adapted to be engaged by the flnthe blankis adapted to be initially folded on the 25 gers when removing theterminal receptacle from transverse or horizontally extending line 5 anda stack and while using. as shown more particularly in Fig. 5 of thedraw- A further object of the invention resides in ings the inner end ofthe flange or extension 3 on forming the receptacle or cup from a singlepiece the portion 1 extends beyond the fold point 5 to of material orblank adapted to be folded on 'a provide the section 6 merging with andforming 30 transverse or horizontal line to provide a body a part of theportion 2. Likewise the inner end portion with a closed bottom,- thesides of the of the flange or extension 4 of the portion 2 exbody beingclosed by folding edge portions of tends beyond the fold point 5 toprovide the porthe material or blank, and securing said folded tion 7merging with and forming a part of the edge portions to the body.portion 1 of the blank.

35 Still another object of the invention consists As previously statedin forming the receptacle in forming a receptacle or cup from a singleor cup the blank is initially folded on the line 5 piece or blank' ofmaterial and folding the same to form a closed bottom 8 for thecompleted recepin a novel manner to provide a body portion .with tacleor cup and in this initial folding the portion a tightly closed bottomand side edges thereby 6 will extend parallel with the flange orextenpreventing leakage while the receptacle or cup is sion 3 and theportion 7 will extend parallel with in use. the flange or extension 4.The flanges or exten- With the above and other objects in view, sions 3and 4 as well-as the portions 6 and 7 which will appear as thedescription proceeds, thereof are coated on one side with an adhesive myinvention consists in the novel details of conas is shown in thedrawings and when the blank 45 struction, and arrangement of parts,described in is folded the portions 6 and 7 vwill adhere to their thefollowing specification and illustrated in the respective parallelflanges or extensions 3 and 4. accompanying drawings, and while I haveillus- In folding along the line 5 the edge of the portion trated anddescribed the preferred embodiments 1 not provided with the flan orxtension will of the invention, as they now appear to me, it en a e theopposed portion 2 a e the e 9 50 will be understood that such changesmay be of 5, as Shown more P ly in Fig. 6

made as willfall within the scope of the 941- of the drawings, and theedge of the portion 2, not pended claim. having the flange or extension,will engage the In the drawings: opposed portion 1 along theline 10 ofFig. 5, as Fig. 1 is a perspective of a completed cup or shown moreparticularly in Fig. 6 of the drawreceptacle. ings.

, scribed the lower portion of the flange or extension 3 will be foldedover the outer face of the portion 2 and secured thereto by theadhesive. The lower portion of the flange or extension 4 will be foldedover the outer face of the portion 1 and secured thereto by theadhesive. It will be understood and seen that the portions 6 and '7 arefolded with the flanges 3 and 4, respectively, and when the flanges orextensions arefolded and secured in position the portions 6 and 7provide a tight closure adjacent the bottom of the receptacle or cup andthe folding and securing of the flanges or extensions form tight seamsat the sides of the receptacle or cup. As shown more particularly inFigs. 1 and 2 of the drawings the side seams extend at an angle from thetrue vertical with the bottom edges of the seams being directed inwardlytowards the vertical center of opposed sides of the receptacle or cup,the lower ends of the flanges or extensions extending upwardly at anangle, as shown more particularly at 11 and 12 in Figs. -1 and 2 of thedrawings. The angles at which the flanges or extensions are positionedaid in forming a tight closure at the bottom of the receptacle or cup. 7

From the above detailed description it is thought that the manner inwhich the receptacle or cup is formed from the blank of materialwill beclearly understood. In the folding of the blank and securing of the sideedges, it will be seen that I have provided a receptacle having a roundnormally open mouthportion and a body portion which is of substantiallywedge-shape tapering downwardly to provide a flat relatively wide bottomadapted to be engaged by the fingers when removinga terminal receptacleor cup from a stack thereof and whileusing. A cup or receptacle of thisformation has the advantages of both the well-known types-of cylindricaland flat cups. My cup or receptacle is of a formation whereby arelatively large number. may be nested in a 'with the flngers will havea tendency to slide the terminal cup from the next cup in the stackthererelatively small stack. This is of particular advantage where thecups are to be dispensed from a dispensing machine and obviates thenecessity of an attendant frequently replenishing or refilling. Theterminal receptacle'or cup may be removed from the stack, as previouslystated, by grasping the relatively wide flat bottom edge and inwithdrawing the terminal cup from the stack and necessary compressioncaused by engagement by facilitating its removal. The overlapped andadjoining portions of the walls or portions 1 and 2 being'continuous andfree from creases or folds serve as reinforcements tending to resistcollapse or closing of the mouth portion. By forming my receptacle orcup of relatively light material and of a single blank or piece ofmaterial-the same may be cheaply made and by folding the blank on atransverse horizontal line as I have described a water-tight bottom isprovided to prevent leakage. The formation of the portions 6 and 7,extending beyond the fold line of the blank also aids in forming a tightclosure at each side of the-bottom to prevent leakage at the bottomadjacent the side seams.

Having fully described my invention what I claim as new and desire tosecure by Letters Fatent is:-

A paper drinking cup having an open self-extended mouth and a downwardlytapered rounded body terminating in a wedge-shaped bottom, said cupbeing formed from a single piece of material folded on a medialtransverse line to provide opposite wall portions, edges of the wallportions being overlapped and secured together, the overlapped edges ofthe wall portions providing longitudinal reinforcements throughout thelength of the body, and at the sides thereof, the reinforcements beingpositioned on opposite sides of the medial fold line of the material.

- HERMAN CAREW.

